Baffle-wall for locomotive fire-boxes.



H. D. SAVAGE. BATTLE WALL FOR LOGOMOTIVE FIRE BOXES.

APPLICATION FILED JUNE 1, 1911.

1,033,952. Patented July 30,1912.

WITN ssizs INVENTOR @W Z W WM;

in holdin the brick against lateral displace-- EETTEE sTETEs PATENT oEETcE.

HARLOW DOW SAVAGE, OF ASHLAND, KENTUCKY.

RAFFLE-WALL r03 LocoMorIvE FIRE-Boxes.

Specification of Letters Patent.

Patented July 30, 1912.

Application filed June 1, 1911. Serial No. 630,581.

tubes, reduce the cost of fire brick, and for convenience of handlingf In the accompanying drawing Figure 1 is a longitudinal section through a fire box provided with my improved battle Wall; Fig. 2 is a transverse section on the line Q- Z, Fig. 1; Fig. 3 is a plan view of the battle; and Figs. 4, 5 and 6 are perspective views of the brick. I

In the drawings 1 represents the front wall of the locomotive fire box provided with a firing opening 2; 3 represents the rear wall of said fire box; 4 the top thereof,

and 5 the grate. Extending between the front and rear side walls are the usual'longitudinal tubes6 for supporting the battle wall. The fire box'is provided with'four longitudinal tubes6, which, as shown, are connected in the circulation of the boiler and extend substantially parallel to the central longitudinal vertical plane of the fire box, at least for those portions of their length which support the baflie wall, and, as shown in Fig. 1, are inclined' longitudinally of the fire box.

The bailie wall 7 is formed by a series of brick supported upon the longitudinal tubes 6, there being one row of brick between each two adjacent tubes and between each-side tube and the side walls of the fire box. As shown, there are five rows of brick, to wit, the central row 8, two intermediate rows 9,

, and two extreme side rows 10. "The centra and intermediate rows are formed of brick of the same shape, except for length, each brick having its ends beveled both from the top and bottom, as at 11 and 12, toprovide an acute Wedge-like end. The beveled faces 12 rest upon the tubes T3, so that a portion of the body of each brick extends downwardly between the tubes, thereby assisting ment. T ease/latter beveled faces however perm t/the ends of-the' brick to slide up passing t somewhat on the tube to compensate for expansicn and contraction. It will be observed that the meeting ends of two contiguous brick have their apexes opposite.

each other, so'that in case one brick should move materially laterally it can move up over the inclined face 11 of: the brick in the nextv adjacent row. This double beveling of the ends of the brick therefore :permits the brick to move more or less laterally under extreme conditions of expansion and contraction, permitting the ends of adjacent brick to pass each other if.necessary.

The brick of the side rows '10 are beveled only at .their inner ends, the outer ends preferably being somewhat square and preferably supported on hollow projections or bushings 15 secured to the side walls of the The longitudinal edges ofthe brick are rabbeted, as shown at 16, so as to provide overlapping portions whereby each brick is supported to some extent upon the adjacent brick and forming rows of brick in. which each brick has such support upon the adjacent brick that it is not readily tipped o'r tilted'o-ut of place. Th'e'rearmost brick of each of the rows is preferably provided with an extension or projection 17 bearing against the rear side-wallof the fire. box, and leaving spaces 18 at such wall throughwhich flame can pass.

The brick described are of simple shape,

cheap to manufacture, and can be very readily put in place and removed. The ends thereof are such that brick ofadjacent rows cannot fuse together and the construction is such that while the brick arefree -to move laterally somewhat and pass each" other, they nevertheless have portions depending between the tubes to prevent lateral displacement due to the joltlngior jarrmg. of the locomotive. The several brick of each row mutually support each other' on account of the overelapping portions thereof, and these portions also form'a broken joint to rough.

What I claim is:

1. A locomotive fire box comprising in combination, side walls, longitudinally in clined circulation tubes extending betweenthe side walls and laterally disposed in a horizontal plane, and rows of brick on said tubes, the ends of said brick being beveled greventfiame and hot gases from from both sides' to provide endportions hav- I ing upper and lower inclined faces at each end thereof, the lower inclined faces at opposite ends resting at a line on and fitting 1 adjacent tubes, adjacent rows of said brick presenting wedge-like ends toward each other, whereby the lower inclined faces of I said brick can move laterally and rideupon v clined circulation tubes between the side the upper inclined faces of adjacent brick with contraction and expansion.

2; A locomotive fire box comprising in combination, side walls, longitudinally ina projection extending beyond the flat side face of said brick and bearing against the rear side wall, all of said brick being adapted to beplaced on said tubes with either the upper or lowerbeveled faces resting upon and fitting the same and with a portion projecting down therebetween, whereby the inclined faces resting upon said vtubes can move laterally and ride upon the upper inclined. faces ofadjacent brick with contraction and expansion.

In testimony whereof, I have hereunto set my hand.

HARLOW now SAVAGE.

Witnesses E. H. GARTRELL,

M. L. MALZBERGER. i

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. e 

